bump version to 1.5.0

[emmyoop]

Checklist

• I have read the contributing guide and understand what's expected of me
• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue
• I have opened an issue to add/update docs, or docs changes are not required/relevant for this PR
• I have run changie new to create a changelog entry

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 64.30%. Comparing base (002377d) to head (dd9b1ef).

Files	Patch %	Lines
dbt_common/__about__.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #160   +/-   ##
=======================================
  Coverage   64.30%   64.30%           
=======================================
  Files          51       51           
  Lines        3202     3202           
=======================================
  Hits         2059     2059           
  Misses       1143     1143           

Flag	Coverage Δ
unit	64.30% <0.00%> (ø)

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